adding content for a new article

Author: SnehaSudhirG

articles/update-manager/prerequsites.md

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+---
+title: Azure Update Manager overview
+description: This article explains the prerequisites for Azure Update Manager, and network planning.
+ms.service: azure-update-manager
+ms.custom: linux-related-content
+author: SnehaSudhirG
+ms.author: sudhirsneha
+ms.date: 07/14/2024
+ms.topic: overview
+---
+
+# Prerequisites for Azure Update Manager
+
+## Prerequisites
+
+Azure Update Manager is an out of the box, zero onboarding service. Following are the  only a few things that you must consider before starting to use the service. 
+
+### Arc-enabled servers
+Arc-enabled servers must be connected to Azure Arc to use Azure Update Manager. For more information, see [how to enable Arc on non-Azure machines](https://aka.ms/onboard-to-arc-aum-migration).
+
+### Support matrix
+Refer [support matrix] to find out about updates and the update sources, VM images and Azure regions that are supported for Azure Update Manager.
+
+## Roles and permissions
+
+To manage machines from Azure Update Manager, see roles and permissions.
+
+## VM extensions
+
+zure VM extensions and Azure Arc-enabled VM extensions are required to run on the Azure and Arc-enabled machine respectively for Azure Update Manager to work.
+
+## Next steps
+
+- [View updates for a single machine](view-updates.md).
+- [Deploy updates now (on-demand) for a single machine](deploy-updates.md).
+- [Enable periodic assessment at scale using policy](https://aka.ms/aum-policy-support).
+- [Schedule recurring updates](scheduled-patching.md)
+- [Manage update settings via the portal](manage-update-settings.md).
+- [Manage multiple machines by using Update Manager](manage-multiple-machines.md).